FM-2 Wildcat

[Cvairwerks]

Had another thought for you after rereading about the frustration. Grab the IPB and pick a single part, something simple and start with those drawings. You've grabbed some fairly complicated parts to start with. A good one to start with would be the instrument panel itself. It's from flat sheet and probably at most has a lip formed around the edge for stiffening. Then look around for other simple parts like that . It won't take long and you will be much more familiar with the drawing style of that time period and more attuned to how cuts were used and placed for the fabrication shop. One other thing, is if you are planning on building parts, take the time and do the flat part development with the bend line locations and bend allowance calculations. It will make things go way faster in the shop when it comes to building the parts.

[Joseph Huntley]

Ok sent also I posted the sheets for the LG I am working on which is funny as they slightly different than the drawings at air corps or maybe just a better copy.

http://www.proflooney.net/Wildcat/Wildcat-Landing-Gear-Microfilm.rar

also I decided to fire up join.me which is a nice lil prog I use which creates a url that people can use to view my screen live feed so can watch me draw and theres even a lil chat thing there. I use it a lot when I teach people how to use solidworks. the link changes every time i restart the prog but I try to just leave the link running 24 hrs a day for a couple days before needing to restart it.

Here is my current link https://join.me/824-396-301

I work usually from 6pm -11 central time the rest of the time im usually a drawing fool 14 hrs a day most days

[Joseph Huntley]

ok what is IBP?

and yes i started with the LG as thats always been the stopper for me when trying to do an R/C model I was thinking doing one at 1/4 or 1/3 as a martlet paint scheme or maybe even Bush Srs plane dunno for sure but the martlets looked so much better than just plain ole american blue lol

[Joseph Huntley]

Ok I think I will take your advice and start with the cockpit as most will be fairly simple sheet metal parts and I havent done any sheet metal in solidworks so will give me practice making sheet metal parts in solidworks for flat patterns and force me to start simple. plus will be cool looking when all assembled. sometimes I tend to jump in feet first with the toughest stuff as usually if you can understand the hard stuff the easy goes quick. However in this case I think it is just detrimental too me.

thanks for knocking me upside the head and getting me on a better easier learning process.

also on the other part I looked at the info box and there are 11 drawings to that part 11026-1 through 11026-11

so now im in 715xxxx for the cockpit parts and starting with a simple cockpit shelf reinforcing part

[Joseph Huntley]

haha even the shelf bracket I started with was phooey. the good thing is due to your help I actually am figuring it out without trouble (so far)

after I got the shape and the holes there are a few cutouts but no dimensions. but there was a note saying that "cutouts must be coordinated with mating channel."

so I went down to the title block and there was a reference to sheet 7150709 so I looked up that sheet and saw where the part was mated to this channel piece and there was dimensional drawings there for the channel so now I have the dimensions for the cutout in the first part.

so this is cool I learned enough so far to figure out where to look for various parts and sorta how to read the title block to find reference drawings.

but i am just guessing that there will be times i wont be able to just look at title block that I will have to find the main assy drawing to find all the sub assy stuff. but I am having a blast now and hopefully soon I will be able to understand at the minimum how to find stuff

[Cvairwerks]

Ahh Grasshopper...not a slap, but a gentile nudge to you

A couple of things... IPB=IPC=Parts Catalog. Illustrated Parts Breakdown/ Illustrated Parts Catalog. The format, for those not familiar, is the a/c is broken down in to various section, which are then broken down much farther. At that level, there will be an exploded drawing of a section or major assembly, with each part flagged by a item number. After the drawing will be a table that refers to that specific drawing, listing each part in flag number order. Each part listing will contain the flag number, the part drawing number, nomenclature, quantity used and type/version effectivity. The effectivity block can get complicated in a hurry, especially on wartime production aircraft. Where the a/c was produced in multiple plants, It will include model of a/c, production block number and serial number range it was used on. There are instance of having parts that are applicable to single s/n aircraft, so this can be confusing until you have worked with it some.

Something else that will help: Aircraft production drawings are broken down into a general sequence, with individual drawings not necessarily being in a cohesive numbering sequence. Some companies did do this, but not all. The basic numbering scheme follows this pattern: XX(X)-zzzzz(z)-pp(p)(T).

XX(X) will be the particular aircraft, such as Mustang, Harpoon ect...It will be either a 2 digit or 3 digit number
zzzzz(z) is the actual base part number of the individual part or assembly.
pp(p)(T) is the dash number of the part, if there is more than one version. Often there will be more than one version of the part. It is also used where the individual parts make up an assembly and are only shown on the assembly drawing itself and fabricated from there. The designator (T) is used where there are mirrored or handed parts. It will generally end up being an L, R, T or B, giving the relative location within the assembly.
So here is a partial number off of my Fairchild. I don't have the prefix, as my books are the factory preliminary ones and the prefix was not assigned at the time of publication. So, xxx-724204-1L, is a Fairchild AT-21 part, 72 denotes part of the tail, 4204-1 is the particular part within the tail and because it is handed, there is the L designator. Each company had their own way of handing parts numbering, but most do follow a similar style sequence.

End of old warbird blueprint class for this morning...... more to follow as I can put things together and as questions come up.

I'll have to get my wife to run me thru making powerpoint slides with all the little xx'es and oo'es and arrows and.... oh wait a minute, this isn't Alice's Restaurant... I'll have her show me how to add that stuff and I can make up some slides that will show lots of the information that is available on the drawings.

[Joseph Huntley]

lol well tonight I was gathering a bunch of rudder pedal drawings I still have my join me on but will be grabbing abt 4 hrs sleep so nothing will be moving on my screen til morning and all day fri. the parts catalog thingy I will have to search the web as i dont see any books on air corps for the wildcat of course with 4 TB hard drive I might even have one somewhere as the wildcat and avenger couple my fave planes and haveing 3 avengers within hour of me is handy but thats some ways down the road. I know I have the browning MG drawn up already so will have to dig them up.

lol anyone want factory drawings of the Colt 1911 ))

[Jim MacDonald]

Joe,

FM-2 IPB emailed to you.

Mac

[Joseph Huntley]

Got it mac and replied Domo Arigato

Ok guys todays and tomorrows Live feed of my screen is https://join.me/453-141-144 I got a lot of drawings last night for the Rudder Pedal assy and will be working on them

[Joseph Huntley]

I need some help guys on sheet 11754 rudder pedal ratchet my copy has really bad dims listed for the 4 holes. does anyone have a cleaner copy that could give me the proper hole dimension?

[Cvairwerks]

Looks to be a #30 (.1285"). You know that it's less than a 3/16ths because of the spacing between the row centers. Find the mating part and you can be sure. Sometimes it helps to zoom out rather than zoom in for readability.

[Joseph Huntley]

ok thanks

[Joseph Huntley]

Ok guys well off tomorrow and just got home from work so now time for a 30 ish hour drawing marathon ))

My Join Me if you are up and bored is https://join.me/867-194-946

[Joseph Huntley]

well had to spend part of the night at the hospital as they took dad in. ended up not to be anything serious but while there I got to thinkin. I nrmally draw things in their relative positions so if ever taken apart its easy as top front and right plane mate. now it will prob be impossible to do that with this plane but I figure still be nice top try and find which drawingsa show the plane assy and go from there making blocks of parts at least will give me a chance to wake up.

[Joseph Huntley]

Ok thanks to CV logging into my Join Me we had a nice conversation and he taught me tons today so now that I have a little time to play around get used to some drawing etc time to get serious. he helped me figure out where the front end dims were so I will be starting at the powerplant area and working backwards on the plane drawing things. so today I will start layint out locations and then make notes on my layout sheet for associated assy drawings so it will make things easier and i wont be doing like i have been and jumping all over like a lost lil kid ))

man I love this group I have learned so much and some day will be able to contribute to others